Glassware



(ModqL) JfLOGKB. GLASSWARE.

No. 282.002. Patented July 24, 1 883.

.one kind bf glass,

heat, as will be described.

- JOSEPH teens, or soMnnviLLnAssieNoR T0 WM. L. LIBBEY, or new TON, AND EDWARD D. LIBBEY, OF BOSTON, MASSACHUSETTS;

eLAsswa as.

sriaerrrcn'rron" forming part'of Letters Patent nonzsaooe, dated July 24, 1833. li nmum. filed June 21,1 23. (ModeL) To all whom it may concern.-

Be it known that I, JOSEPH LooKE, of Somerville, county of Middlesex, State of Massa= ehusetts, have invented an Improvement in Glassware, of 'whidh the following description, in connectionv with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention has forv its object the production of a novel class 'of glassware as a new article of manufacture, the glassware being composed of homogeneous stock, having different or contrasting colors blended or merged one into the other, as" will be described; 7

' Articles of glassware presenting different colors; asnow cennnenly madegareeither courposed of a body of one class or color of glass plated or veneered with glass of a different color or kind, or of glass of different colors,or materials mixed and melted, the different colors or kinds-showing more or less distinctly in the product, or of pieces of different colored .glass' incorporated with glass just removed from the pot. and yet plastic; butneither of these classes of glass are of homo geneous or of like stock'throu'ghout.

' In accordance with my invention the article of. glassware showing different colors is all of or the glass for the production of theentire articleisall the result of the same'mixture and is taken from the same pot.

or crucible, thechange in color being proware by the action upon; it of varying degrees of The drawing shows" a piece glassware embodying'. my invei tion.

To produce glas in accordance with my invention, I take what is knownt b skilled glass makers as an amber-glass mixture, or one V containing the metalgold, and as'commonly used-for making ruby glass, and, having melted the said mixture in a pot in an ordinaryfurnape, thus forming of it amber glass, the latter is gathered on a blow-iron or punty and taken froin the pot in usual is blown, molded, or pressed, or fashioned into the shape it is desired that the article of glassware to beproduced shall have, the artimanner, and.

cle being gradually shaped as commonly done, and as is well understood by glass-makers.

The change of color in the article is gradually efl'ected during the operation of making and shaping the same by" cooling the article more or less, and then reheating different por -tions of the same to different degrees, or by subjecting more or less of the said article to the action of heat issuing from the usual glory-hole, or from a pot-holesuch as @0211- monly, found in glass-Works-'or other modes of heating the article may be resorted to.

l When heating the article at the glory hole, it will be moved toward and from the mouth of the same; orit may be from the pot-hole, to-permit the heatand gases to act upon such parts of the article upon which the color is to be developed, the developed color being different from that of the natural color of the homogeneous base or stock; or, in'other words, I expose more or less of the article to heat of greater or less intensity, and for a longer or shorter period, according to the color it is de sired to develop or the contrast which it is desired to produce in different portions of the article, all'parts of which are of uniform texture or material, or, as I have said, stock;

use, vases, &c., in accordance with my invention, I permit one end or portion of,the.art1- cle being made from amber glass, as described,

'ruby color more 'or less dense on but a portion of the article, and cause the developed colors to blend or gradually merge into other colors'common to amber glassj I reheat such portions of the article which are to show the "developedcolor to contrast with the part not "so heated, and in so doing parts of the article are reheated to a greater or less degree, pref? erably continuing to revolve the same by a suitable iron attached to the made, the developed color being at one'or the other end of the article, according to which end thereof the said iron is attached, the ac-' tien of the heat or flame issuing from the gloryhole, or from other suitable .source of heat, against the article resulting in theproduetion of an article of glassware showing different.

During the formation of glassware fortable 9 article being to become more or less cool, and to develop a a colors blended one into the other, the ruby or other colors developed from the amber glass ,being made more or less deep, according to the duration of the furnace heat, the color differing from that of the original color of the glass when first removed from the furnace, being extended more or less throughout the entire article according as more or less of the said article is subjected to the action of the heat or gases, as stated.

'Starting with amber glass as a base, have .been enabled by the action of heat alone to develop on a part of the article composed of homogeneous stock a more or less deep ruby eolor,an d also develop in the saidarticle a .yiolet shade, and greenish, and a blueish, and

I other tinges;

v In the drawing, representing a champagnetumbler of amber glass, the lower end, marked a, is supposed to be of amber color, but its upper portion, b, shown by darker color, is supposed to be of a developed or ruby color, a

darker color than that shown by portion a;

I have described-an amber-glass mixture, containing gold, as the one from which Ihave' obtained beautiful results; but I desire to be understood that other metals and substances may be found to produce a glass which, when subjected to heat, as described, will show dewith amber glass, and different effects in color will be noticeable according to whether the 4 gold is pure or contains an alloy.

I claim I 1. As a new article of manufacture, glassin'g' diflerent colois'blended into each other, as shown and described.

2. That improvement in the art or method of manufacturing articles of glass of homo- JOSEPH LooKE.

. Witnesses:

G. V. GREGORY,

FRED A. P'owELL.

ware composed of homogeneous stock, presentgeneous stock, and producing therein differ employed to give color to glass compounds veloped colors differing from those produced 

